Which is the BEST definition for the word strenuous as it is used in the excerpt from “To a Healthier Future”?

When it comes to strenuous outdoor activities, genetics do not have a greater influence, but people’s daily habits do.
Responses

A acquiredacquired

B effortlesseffortless

C laboriouslaborious

D healthyhealthy

1 answer

C laborious

The word "strenuous" is used here to mean something that requires a lot of physical effort and is challenging or difficult to do. "Laborious" is the best definition in this context.